[0161] Updated scale of creature 1895

* Fixed size for creature 1895 (Pyrewood Elder) which was way too big
compared to other inhabitants of Pyrewood village.
[0162] Fixed faction for creatures 2578, 2579, 2580

* Reverted faction for creatures 2578 (Young Mesa Buzzard), 2579 (Mesa
Buzzard), 2580 (Elder Mesa Buzzard) as they were hostile to players prio
to patch 2.3.2. Correct faction value is taken from other buzzard
creatures
Source:
http://http://www.wowwiki.com/Mesa_Buzzard
http://www.wowwiki.com/Elder_Mesa_Buzzard
http://www.wowwiki.com/Young_Mesa_Buzzard